Summary & Overview
HCPCS Level II S0390: Routine Foot Care, Corns/Calluses/Nail Trimming
HCPCS Level II code S0390 covers routine foot care services—removal or trimming of corns, calluses and nails—and preventive maintenance for patients with qualifying medical conditions, billed per visit. This code is nationally relevant because routine foot care is an important preventive service for populations at elevated risk for foot complications, such as people with diabetes, and billing clarity affects access and appropriate reimbursement across ambulatory settings. Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find an explanation of what the code represents and where it is typically performed, plus an overview of payer coverage patterns and common billing practices related to S0390. The publication outlines typical service lines and site-of-service considerations, highlights common modifiers used with the procedure, and summarizes policy and coverage nuances that influence claims adjudication. Benchmarks and payer-specific coverage notes are included where available. Where input data is incomplete, the report flags missing items and refrains from speculating. The content is designed for payers, billing professionals, and clinical administrators seeking a concise, national-level briefing on use and handling of HCPCS Level II code S0390.
Billing Code Overview
HCPCS Level II code S0390 represents routine foot care consisting of the removal and/or trimming of corns, calluses and/or nails and preventive maintenance for patients with specific medical conditions (for example, diabetes), billed per visit.
Service type: Routine foot care / podiatric maintenance
Typical site of service: Outpatient clinic, podiatry office, primary care office, or other ambulatory care settings
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A typical patient is a 62-year-old with type 2 diabetes presenting to a podiatry clinic for routine foot care. The patient reports thickened toenails, localized callus formation under the forefoot, and occasional pain over a plantar corn. The clinic visit includes a focused podiatric foot exam, assessment of circulation and sensation (monofilament testing and pedal pulses), topical debridement and trimming of hypertrophic nails, scalpel removal of callus and corns, and patient education about daily foot inspection and glycemic control. The procedure is billed as S0390 when performed for preventive maintenance in the setting of a qualifying systemic condition (for example diabetes) that places the patient at increased risk for foot complications. Typical workflow: check-in and vital signs, focused history and medication review, targeted lower-extremity vascular and neurological exam, wound/callus/nail care performed by a licensed podiatrist or trained foot-care clinician, documentation of findings and interventions, and scheduling of follow-up or referral if there are signs of infection, ulceration, ischemia, or neuropathy. Typical sites of service are outpatient podiatry clinics, physician offices, primary care clinics with podiatry services, and, less commonly, home health visits for patients with limited mobility.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required is substantially greater than typical for due to severity, amount of work, or unusual circumstances documented in the record. |